update stats items in poisson_parallel_interactive.py example
update stats items in poisson_parallel_interactive.py example

sfepy/sfepy,sfepy/sfepy,BubuLK/sfepy,vlukes/sfepy,rc/sfepy,BubuLK/sfepy,rc/sfepy,sfepy/sfepy,BubuLK/sfepy,vlukes/sfepy,vlukes/sfepy,rc/sfepy